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i <br /> Table 2 <br /> IIISTORIC FLUID LEVELS AND SELECTED ANALYTICAL RESULTS <br /> February 1990 Through June 2005 <br /> Former 76 Station 6981 <br /> Date TOC Depth to LPH Ground- Change TPH-G TPPH Benzene Toluene Ethyl- Total MTBE MTBE Comments <br /> Sampled Elevation Water Thickness water in 8260B benzene Xylenes 8021B 8260B <br /> Elevation Elevation <br /> (feet) (feet) (feet) (feet) (feet) (µg/1) (µg11) (µg11) (µg11) (µg11) (µg/1) (µgll) (µg/l) <br /> MW-8 continued <br /> 06/25/03 1038 30 10 000 -1972 -026 -- ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<2 0 <br /> 09/24/03 1038 3239 000 -2201 -229 -- ND<50 ND<0 50 1 1 ND<0 50 ND<I 0 -- ND<2 0 <br /> 12/30/03 1039 31 96 000 -2158 043 -- ND<50 ND<0 50 1 3 068 2 3 -- ND<2 0 <br /> 03/09/04 1038 31 07 0 00 -2069 0 89 -- ND<50 ND<0 50 ND<0 50 ND<0 50 14 -- ND<2 0 <br /> 06/16/04 1038 31 67 000 -2129 -060 - 85 ND<0 50 076 ND<0 50 ND<1 0 -- ND<0 50 <br /> 09/20/04 1038 3442 000 -24 04 -275 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<I 0 -- ND<0 50 <br /> 12/30/04 1038 33 91 0 00 -2353 051 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<I 0 -- ND<0 50 <br /> 03/24/05 1038 3250 0 00 -22 12 141 ND<50 -- ND<0 50 ND<0 50 ND<0 50 ND<1 0 -- ND<0 50 <br /> 06/28/05 1038 31 04 000 -2066 146 ND<50 ND<0 50 ND<0 50 ND<0 50 ND<l 0 -- ND<0 50 <br /> MW-9 (Screen Interval in feet 50 0-70 0) <br /> 10/21/92 -- -- -- -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 01/13/93 -- -- -- -- -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 - -- <br /> 04/26/93 1176 5052 -- -3876 -- ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- <br /> 07/26/93 1 1 76 51 50 -- -3974 -098 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 10/20/93 1176 51 99 -- 4023 -049 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 --01/17/94 11 76 4958 -- -37 82 241 280 -- 4 9 15 91 45 - -- <br /> 02/28/94 1176 48 50 -- -36 74 108 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 04/25/94 1176 4751 -- -3575 0 99 ND<50 ND<0 5 094 ND<0 5 1 3 - -- <br /> 07/25/94 11 76 4987 -- -38 11 -236 ND<50 - ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> 10/26/94 11 76 5103 -3927 -1 16 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 <br /> 01/25/95 11 76 4832 -- -3656 2 71 ND<50 -- ND<0 5 ND<0 5 ND<0 5 ND<0 5 -- - <br /> 04/26/95 11 76 4344 -- -3168 488 ND<50 -- 1 2 4 1 ND<0 5 3 3 - -- <br /> 07/26/95 11 76 4461 -- -32 85 -1 17 ND<50 -- ND<0 5 14 ND<0 5 12 -- -- <br /> 10/25/95 1176 4554 - -3378 -0 93 ND<50 -- ND<O 5 ND<0 5 ND<0 5 ND<0 5 -- -- <br /> x981 Page 19 of 37 <br />